"Doctor X" (1932), directed by Michael Curtiz, is a seminal piece of early horror cinema that blends mystery and thriller elements with the then-novel use of Technicolor. Set against the backdrop of a series of gruesome and seemingly inexplicable murders, the film follows the investigative efforts of Doctor Xavier (Lionel Atwill), who runs a prestigious medical academy. Amidst rising public panic, Xavier conducts a covert investigation, suspecting one of his colleagues might be the murderer. The film's atmosphere is enhanced by its eerie settings, including a creepy mansion and a secret laboratory, which are complemented by the innovative and eerie lighting techniques Curtiz employs.

A standout in the film is Fay Wray, who plays Joanne Xavier, the doctor's daughter. Her character becomes central to the plot's tension, balancing vulnerability with bravery. Wray's performance, alongside Atwill's, adds depth to the unfolding mystery. Curtiz masterfully maintains suspense, using tight close-ups and dramatic pacing to keep viewers on edge.

"Doctor X" is also notable for its technical achievements. It was one of the early films shot in the two-color Technicolor process, which lends a unique and unsettling visual quality, reinforcing the film's macabre tone. The film's success paved the way for Curtiz's illustrious career in Hollywood, and it remains a classic example of early American horror, blending scientific intrigue with gothic horror elements.